中文
相关论文

相关论文: Electrically driven spin resonance in a bent disor…

200 篇论文

We theoretically investigate spin current and magnetic response induced by the twisting phonon mode in carbon nanotubes via the spin-rotation coupling. An effective magnetic field due to the twisting mode induces both spin and orbital…

介观与纳米尺度物理 · 物理学 2015-11-17 Masato Hamada , Takehito Yokoyama , Shuichi Murakami

We report transport measurements on a quantum dot in a partly suspended carbon nanotube. Electrostatic tuning allows us to modify and even switch 'on' and 'off' the coupling to the quantized stretching vibration across several charge…

介观与纳米尺度物理 · 物理学 2015-06-18 P. Weber , H. L. Calvo , J. Bohle , K. Goß , C. Meyer , M. R. Wegewijs , C. Stampfer

We develop a theory for the spin-echo dynamics of a heavy hole in a quantum dot, accounting for both hyperfine- and electric-field-induced fluctuations. We show that a moderate applied magnetic field can drive this system to a…

介观与纳米尺度物理 · 物理学 2012-12-19 Xiaoya Judy Wang , Stefano Chesi , William A. Coish

We review recent advances on the theory of spin qubits in nanostructures. We focus on four selected topics. First, we show how to form spin qubits in the new and promising material graphene. Afterwards, we discuss spin relaxation and…

介观与纳米尺度物理 · 物理学 2008-08-29 B. Trauzettel , M. Borhani , M. Trif , D. Loss

In Co-nanotubes with a curling magnetization, the orbital motion of the conduction electrons interacts with their spin. We predict that the (absolute) value of the magnetic energy of the spin is strongly reduced. The new precession axis for…

介观与纳米尺度物理 · 物理学 2015-03-16 G. Bergmann , R. S. Thompson , J. G. Lu

Bending-mode vibrations of carbon nanotube resonator devices were mechanically detected in air at atmospheric pressure by means of a novel scanning force microscopy method. The fundamental and higher order bending eigenmodes were imaged at…

介观与纳米尺度物理 · 物理学 2012-07-12 D. Garcia-Sanchez , A. San Paulo , M. J. Esplandiu , F. Perez-Murano , L. Forro , A. Aguasca , A. Bachtold

Quantum dots defined in carbon nanotubes are a platform for both basic scientific studies and research into new device applications. In particular, they have unique properties that make them attractive for studying the coherent properties…

介观与纳米尺度物理 · 物理学 2009-07-15 G. A. Steele , G. Gotz , L. P. Kouwenhoven

A dual-gate InSb nanosheet field-effect device is realized and is used to investigate the physical origin and the controllability of the spin-orbit interaction in a narrow bandgap semiconductor InSb nanosheet. We demonstrate that by…

介观与纳米尺度物理 · 物理学 2021-01-05 Yuanjie Chen , Shaoyun Huang , Dong Pan , Jianhong Xue , Li Zhang , Jianhua Zhao , H. Q. Xu

We consider an electron confined in a gated nanowire quantum dot (NQD) with arbitrarily strong spin-orbit coupling (SOC) and weak static magnetic field, and treat the latter as a perturbation to seek the maximal spin-motion entangled states…

介观与纳米尺度物理 · 物理学 2024-04-23 Kuo Hai , Xuefang Deng , Qiong Chen , Wenhua Hai

We study theoretically electron spins in nanowire quantum dots placed inside a transmission line resonator. Because of the spin-orbit interaction, the spins couple to the electric component of the resonator electromagnetic field and enable…

介观与纳米尺度物理 · 物理学 2009-11-13 Mircea Trif , Vitaly N. Golovach , Daniel Loss

We develop a microscopic theory of spin noise in solid-state systems at electron paramagnetic resonance, when the spin dynamics is driven by static and radio-frequency (RF) magnetic fields and the stochastic effective magnetic field…

介观与纳米尺度物理 · 物理学 2020-02-12 A. V. Poshakinskiy , S. A. Tarasenko

Motivated by the possibility of combining spintronics with molecular structures, we investigate the conditions for the appearance of spin-polarization in low-dimensional tubular systems by contacting them to a magnetic substrate. We derive…

介观与纳米尺度物理 · 物理学 2009-11-10 Mauro S. Ferreira , Stefano Sanvito

Motivated by the recent acoustically driven spin resonance studies applied to silicon vacancy centers in silicon carbide, we theoretically investigate the spin--strain interaction characterized by the defect spin-$3/2$ quadrupole components…

强关联电子 · 物理学 2024-09-09 Mikito Koga , Masashige Matsumoto

Using nonequilibrium Green functions and several complementary many-body approximations we calculate shot noise and spin dependent conductance in carbon nanotube semiconducting quantum dot in spin-orbital Kondo regime. We point out on the…

介观与纳米尺度物理 · 物理学 2010-04-19 Stanislaw Lipinski , Damian Krychowski

We report Pauli spin blockade in an impurity defined carbon nanotube double quantum dot. We observe a pronounced current suppression for negative source-drain bias voltages which is investigated for both symmetric and asymmetric coupling of…

We study spin-dependent transport through a quantum nanostructure composed of a quantum dot (QD) surrounded by a quantum nanoring. The nanostructure is side-attached to source and drain electrodes and we assume that the confining potential…

介观与纳米尺度物理 · 物理学 2024-10-01 Barbara Kedzierska , Anna Gorczyca-Goraj , Elzbieta Zipper , Maciej M. Maska

We theoretically study the creation of single- and multi-phonon Fock states and arbitrary superpositions of quantum phonon states in a nanomechanical carbon nanotube (CNT) resonator. In our model, a doubly clamped CNT resonator is…

介观与纳米尺度物理 · 物理学 2016-11-23 Heng Wang , Guido Burkard

Hysteretic switching in the magnetoresistance of short-channel, ferromagnetically contacted individual single wall carbon nanotubes is observed, providing strong evidence for nanotube spin transport. By varying the voltage on a capacitively…

介观与纳米尺度物理 · 物理学 2016-08-31 Bhaskar Nagabhirava , Tanesh Bansal , Gamini Sumanasekera , Lei Liu , Bruce W. Alphenaar

Cavity optomechanics allows the characterization of a vibration mode, its cooling and quantum manipulation using electromagnetic fields. Regarding nanomechanical as well as electronic properties, single wall carbon nanotubes are a…

介观与纳米尺度物理 · 物理学 2020-04-06 Stefan Blien , Patrick Steger , Niklas Hüttner , Richard Graaf , Andreas K. Hüttel

We report on cotunneling spectroscopy magnetoconductance measurements of multi-hole ultraclean carbon nanotube quantum dots in the SU(4) Kondo regime with strong spin-orbit coupling. Successive shells show a gradual weakening of the Kondo…

介观与纳米尺度物理 · 物理学 2015-06-17 J. P. Cleuziou , N. V. N'Guyen , S. Florens , W. Wernsdorfer